Which condition satisfies the quiet operation in machines?(a) number of stator slots is divisible by number of pairs of poles(b) number of rotor slots differs from the number of stator slots by more than the number of poles(c) number of rotor slots is not divisible by number of pairs of poles(d) number of stator slots differs from the number of rotor slots by more than the number of polesThis question was posed to me in semester exam.Question is from Design of Rotor topic in division Design of Single Phase Induction Motor of Design of Electrical Machines

Which condition satisfies the quiet operation in machines?(a) number o

1.	Which condition satisfies the quiet operation in machines?(a) number of stator slots is divisible by number of pairs of poles(b) number of rotor slots differs from the number of stator slots by more than the number of poles(c) number of rotor slots is not divisible by number of pairs of poles(d) number of stator slots differs from the number of rotor slots by more than the number of polesThis question was posed to me in semester exam.Question is from Design of Rotor topic in division Design of Single Phase Induction Motor of Design of Electrical Machines
Answer» The correct option is (b) NUMBER of rotor slots differs from the number of stator slots by more than the number of POLES The EXPLANATION is: The number of rotor slots are decided for quieter operation of the machine. The number of rotor slots differs from the number of stator slots by more than the number of poles.

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